马老师linux系统运维基础

这是常规的Collections的排序的写法，需要对接口方法重写

        public void test1(){

        List<String> list =Arrays.asList("aaa","fsa","ser","eere");

        Collections.sort(list, new Comparator<String>() {

            @Override

            public int compare(String o1, String o2) {

                return o2.compareTo(o1);

            }